Frank, can you explain a bit more about 'drawing lines' - do you mean some lines you have drawn or the solid grid lines themselves?

1.If you are using a 'standard' 2 button mouse with a middle scroll wheel you can press and hold down the scroll wheel and drag the model space (with grid ) around (pan) and scroll backwards and forwards to zoom in or out.Or - you can use the zoom tools via the main menu > View > Zoom tools.

2.Things that you draw yourself, like lines and so on can be moved by using either the ‘Move’ related tools in the Modify tool set or by using the edit menu options like, cut, copy and paste!

I mean that the grid lines conceal the lines of the object or shows in the middle of the lines if they have a certain size. The grid shows in front of the lines. If the lines are thin the grid lines conceal the object lines.The grid shows as dots , so no problem, the meta grid shows as lines. I cannot turn off meta grid, so I'm stuck with the meta grid lines.

Another possibility is to increase the transparency of the meta grid color:

In the preferences dialog, choose 'Others...' for the meta grid color. In the color dialog that pops up choose the color to be for example white and then increase the transparency as desired. If you are on a Mac, reduce 'Opacity' instead. If you are on Windows, reduce the 'Alpha channel'.

For most users, the meta grid lines are most useful if they are just barely visible. The ideal transparency setting depends on your preferred background color and monitor brightness / contrast settings.